On Wed, Apr 05, 2023 at 07:48:54PM -0400, Tom Rini wrote:
When building for ARM64, we need to pass -ffixed-x18 and otherwise pass -ffixed-r9. Rather than having this logic in two places, we can do this once in arch/arm/config.mk. Further, while gcc will ignore being passed both -ffixed-r9 and -ffixed-x18 and simply use -ffixed-x18, clang will note that -ffixed-r9 is not used. Remove this duplication to also remove the warning.
Signed-off-by: Tom Rini trini@konsulko.com Reviewed-by: Simon Glass sjg@chromium.org
Applied to u-boot/master, thanks!
arch/arm/cpu/armv8/config.mk | 1 - 2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/arch/arm/config.mk b/arch/arm/config.mk index bf781f102620..5530d02b66c4 100644 --- a/arch/arm/config.mk +++ b/arch/arm/config.mk @@ -3,7 +3,13 @@ # (C) Copyright 2000-2002 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-CFLAGS_NON_EFI := -fno-pic -ffixed-r9 -ffunction-sections -fdata-sections \ +ifeq ($(CONFIG_ARM64),y) +FIXED_REG := -ffixed-x18 +else +FIXED_REG := -ffixed-r9 +endif
+CFLAGS_NON_EFI := -fno-pic $(FIXED_REG) -ffunction-sections -fdata-sections \ -fstack-protector-strong CFLAGS_EFI := -fpic -fshort-wchar
@@ -15,7 +21,7 @@ ifneq ($(LTO_ENABLE),y) PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections endif
-PLATFORM_RELFLAGS += -fno-common -ffixed-r9 +PLATFORM_RELFLAGS += -fno-common $(FIXED_REG) PLATFORM_RELFLAGS += $(call cc-option, -msoft-float) \ $(call cc-option,-mgeneral-regs-only) \ $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,)) diff --git a/arch/arm/cpu/armv8/config.mk b/arch/arm/cpu/armv8/config.mk index ca06ed3d4f92..4d74b2a533e0 100644 --- a/arch/arm/cpu/armv8/config.mk +++ b/arch/arm/cpu/armv8/config.mk @@ -2,7 +2,6 @@ # # (C) Copyright 2002 # Gary Jennejohn, DENX Software Engineering, garyj@denx.de -PLATFORM_RELFLAGS += -fno-common -ffixed-x18 PLATFORM_RELFLAGS += $(call cc-option,-mbranch-protection=none)
PF_NO_UNALIGNED := $(call cc-option, -mstrict-align)